PROF(1) PROF(1)
NAME
prof - display profile data
SYNOPSIS
prof [ option ... ] [ a.out [ mon.out ... ] ]
DESCRIPTION
Prof interprets files produced by monitor(3) or the -p
option of cc or f77. The symbol table in the named object
file (`a.out' by default) is read and correlated with the
profile file (`mon.out' by default). For each symbol, the
percentage of time spent executing between that symbol and
the next is printed (in decreasing order), together with the
time spent there and the number of times that routine was
called. If more than one profile file is specified, the
output represents the sum of the profiles.
Zero call counts are tallied for subroutines not compiled
with option -p. The flag -p must be passed to the loader to
get the profiling output written.
Options are:
-l Sort the output by symbol value.
-n Sort the output by number of calls.
-s Produce a summary profile file in
-v -low -high
Produce a graphic profile on the standard output for
display by the plot(1) filters. Optional numbers low
and high, by default 0 and 100, select a percentage of
the profile to be plotted.
-z Include routines with zero usage in the output.
FILES
for profile
for namelist
for summary profile
SEE ALSO
time(1), lcomp(1), monitor(3), getopt(3), profil(2),
plot(1), cc(1), f77(1)
BUGS
Beware of quantization errors.
Prof is confused by f77, which puts the entry points at the
bottom of subroutines and functions.
PROF(1) PROF(1)
Option -v has been disabled.